"For our company, Hurricane Sandy hit home," said Stu FitzGibbon, the Baltimore refinery's manager, in a statement. The Domino plant in Yonkers, N.Y., was damaged by the storm and offline for 13 days, he said.

"I'm proud to say our employees, both in Baltimore and in New York, stepped up, shuttling parts and supplies back and forth and increasing our Baltimore refinery's output by as much as 20 percent to fulfill our customers' orders," FitzGibbon said.

Domino is partnering with the American Red Cross in its storm-relief efforts, the company said.

Tim Vogel, the director of food sourcing for the Community Food Bank, said the Domino donation would be useful for the nonprofit, which provides large numbers of hot meals and freshly baked products to those in need.

"We've a big baking program here," Vogel said. "There's a lot of opportunity to use the sugar and that's the kind of donation we don't get very often."